OK I am running Fedora Core3, Kernel kernel-2.6.9-1.724_FC3 along with MySQL-server 4.1.8-0.i386. No matter what I do MySQL the process will not start. This happens to me on a couple of boxes. One of the boxes which was upgraded from Fedora Core2 to Core3 does work with the exact same versions of everything. Here are the versions I installed via RPM: -rw-r--r-- 1 root root 3.1M Dec 23 10:03 MySQL-bench-4.1.8-0.i386.rpm -rw-r--r-- 1 root root 5.3M Dec 23 10:05 MySQL-client-4.1.8-0.i386.rpm -rw-r--r-- 1 root root 2.7M Dec 16 03:43 MySQL-devel-4.1.8-0.i386.rpm -rw-r--r-- 1 root root 2.7M Dec 16 03:43 MySQL-embedded-4.1.8-0.i386.rpm -rw-r--r-- 1 root root 15M Dec 23 10:23 MySQL-server-4.1.8-0.i386.rpm -rw-r--r-- 1 root root 1.1M Dec 16 03:43 MySQL-shared-4.1.8-0.i386.rpm -rw-r--r-- 1 root root 1.3M Dec 16 14:41 MySQL-shared-compat-4.1.8-0.i386.rpm When I start mysql with /etc/rc.d/init.d/mysql start I don't get the typical OK, and the mysql log shows this: /usr/sbin/mysqld, Version: 4.1.8-standard-log. started with: Tcp port: 3306 Unix socket: /var/lib/mysql/mysql.sock Time Id Command Argument Making it look like everything is OK. Nothing is in /var/log/messages. I have read several posts on the web and found similar issues with no resolve. I have seen people try to run mysqld but of course get a security issue because it's not supposed to run as root, and that seems to be a popular problem which is not really the heart of the issue. When I su mysql and run mysqld I get this: 050107 14:09:12 [Warning] Asked for 196608 thread stack, but got 126976 mysqld: Can't create/write to file '/tmp/ib5ArcLz' (Errcode: 13) 050107 14:09:12 InnoDB: Error: unable to create temporary file; errno: 13 050107 14:09:12 [ERROR] Can't init databases 050107 14:09:12 [ERROR] Aborting 050107 14:09:12 [Note] mysqld: Shutdown complete I hope this helps as I have already created a flat spot on my head from banging it against the wall, and look forward to a more relaxing weekend. Any help appreciated... Joey